Machine for making concrete building-blocks.



No. 839,388. PATBNTBD 1336.25, 1906. J.JAEGER.

MACHINE FOR MAKING GONGRETE BUILDING BLOCKS.

. APPIJUATION FILED JAILZQ, 1906- 4 BKEETS-SHEEI 1.

1'": NOR!!! PETERS cm, WAnuNamn, 0. c.

No. 839,388. 'PATENTBD DEC. 25, 1906 J. JAEGER.

MACHINE FOR MAKING CONCRETE BUILDING- BLOCKS.

, APPLIGATION FILED JAILZQ. 1906.

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' To all whom it may concern:

.UNITED PATENT OFFICE.

' JULIUS JAEGER'OFFRUTHERFORD, NEW JERSEY.

MACHlNE FORIMAKING CONCRETE BUILDING-BLOCKS.

Application filed January 22, 1906. Serial No. 297,381-

' which is simple in construction, strong and durable, permits of making a number of blocks at the same time in a single operation, and permits of making blocks of various sizes, according to requirement.

likeletters of reference indicate likeparts in .all the fi ures, Figure 1 is a plan view of my improve machine for making concrete building-blocks, parts beingv .broken away.

i Fig. 2 is an end view of the same, parts being broken away and others shown in section. Fig. 3 is a vertical longitudinal sectional view, parts being broken away and others shown in section. Fig. 4 is a perspective view of one of the blocks. Fig. 5 is a'plan view of the adjustable locking-lever. Fig. 6 is a longitudinal sectional View on the line 6 6 of Fig. 5'. Fig. 7 is a side view on one end of one of the partition-plates. Fig. 8 is. a vertical transverse sectional view of the adjustable 'supportsfor the swinging side and end walls of the mold-box. Fig.9 is a plan view on the line 9 9 of Fig. 8, parts being in section. Fig. '10 is' a detail sectional view through some of the supfporting-plates,

showing the adjustable strips or the same.

The frame of the machine is constructed with two hollow side walls A A, resting upon a suitable base B and united by cross-bars O. The top of this frame is open, and within the opening of the frame a vertically-movable bed-plate D can pass, which is provided with side arms terminating in eyes D, which-slide i vertically on rods D secured within the frame, so as to properly guide the bed-plate D in its up-and-down movements. The rods D are wlthin the hollow side frames, and

these side frames are provided withvertical slots D in their inner walls, through which slots the arms terminating in the eyes D extend. The bed-plate is also secured to vermaking. concrete buildingtical downwardly-extending frames. E, having arms E terminating in eyes E, which can also slide on the rods D these frames Patented Dec. 25, 1906.

being contained within the hollow side walls.

Upon the top edges of the side walls a series of supporting-plates F can rest, said supporting-plates being arranged side by side.

and their ends resting on the tops of the hollow side frames A. These supporting-plates are provided each with one or more openings F, through which cores F can pass, which cores are suitably secured to the bed-plate D. The supporting-plates are also provided at each end with an opening F for a purpose to be set forth hereinafter, andwith a handleslot F As these supporting-plates rest upon the top edges of the side frames of the machine, the bed-plate D can move verti- In the accompanying drawin s, in which cally in relation to said supporting-plates, and when the bed-plate rises the cores F can pass through the openings in the supporting I plates, and when the bed-plate descen these cores can be withdrawn through said openings in the supporting-plates. v

. In brackets-'G on the two sides and the two ends of the machine-frame shafts H are mountedto turn, one shaft along-the outer surface of each side frame and one shaft H along each end of the machine, one side shaft and one end shaft being geared together by beveled gearing H, and each side shaft is provided at the. end opposite the one providedwith the bevel-gearing with a crank H having a handle for turning it, so that when the two cranks are turned all the four shafts H will be rotated. Ineach side frame E of the bed-plate avertical bar J is secured, which has a rack J formed on one edge and also has a rack J 2 formed on its outer face toward the outside of the machine. This rack J is engaged with the segmental cog-wheel K, mounted on a shaft K. on brackets K projecting from the outer side of the wall, and this segmental cog-wheel engages a smaller cog-wheel K fixed on one; of the side shafts H, as appears in Fig. 2. Thesaid cog-wheels K and K are covered by a sheet-metal casing K to protect them from water and from dropping concrete, &c. As appears from Fig. 2, such cog-wheels Kand K and casing K -appear on each side of the machine. The rack Jon the bar J engages efcog-wheel L,

fixed on a shaft, L mounted in the side frames of the machine, which shaft carries two hubs T Adjacent to each bracket-arm a hub M, having an arm 1 is loosely mounted on the shaft L, and the arms M are each connected by a connecting-bar l pivotally connected to the arm M, with an arm N on a rock-shaft N, mounted in the side frames of the machine,

I the connecting-bars M being also pivotally connected to the arms N. A counterweight N is attached to arms N on the rock-shaft N, as shown, and the arms N and M have a series of holes so as to permit of adjusting the connectin -bars M in relation to the same. On each s aft H two or more collars O are mounted adjustably, in that they can slide on the length of the collar on splines set in a longitudinal groove O in the top of the shaft and in a recess in the collar. On the upper surface of each collar a disk O is formed, and from this disk two screw-bolts O project up through two segmental slots 0 in a disk P, resting flat upon the disk 0 and centrally pivoted thereto by means of a pivot-bolt P, thus permitting of adjusting the disk P on the disk O and of locking it in place after adjustment by means of the bolts 0 From each disk P two parallel upwardly-extending jaws P project, between which a jaw Q is pivoted at Q near the lower ends of said jaws P so that the jaw Q can swing between the jaws P parallel therewith. The upper edge of each jaw P is curved conveXly and concentrically with the pivot Q, and at each end of this curve there is a stop-lug Q On the top of the pivot-jaw Q a flat plate R is formed, which is provided in its upper surface with a groove R parallel with the jaws Q and P and in this groove the foot of an L- shaped standard S is mounted to slide. A screw-bolt R is passed through this foot, and the head of this screw-bolt slides in an under cut slot R beneath the groove R, so that when the nut of this bolt is loosened the standard S can be shifted in the direction of the length of the plate R and then looked in place. To the standards S the corresponding side or end walls T of the mold-box are fastened, these' side walls being formed of metal plates T, which are secured by bolts T to the inner edges of angle-bars T which are bolted to the standard S, said angle-bars having slots T, through which the bolts T pass, so as to permit of readily interchanging or adjusting the plates T according to requirements. The side walls T of the mold-blocks are of such height that their upper edges are flush with the upper edges of the cores F when the bed-plate D is in its highest position, as shown, for example, in Fig. 3.

For the purpose of locking the four side walls of the mold-box together when the mold is to be closed ready for receiving the material, such as concrete, a tapered pinV projects upward from the top of each end wall T of the mold-box at each end thereof, and to the top of each side wall of the moldbox at each end thereof a locking-lever W is pivoted at W, which lever W 1s provided with a slot W through which the tapering pin V of the adjacent end wall of the box can pass. For the purpose of adjusting the locking-lever W so as to fit properly on the pin V a screw W is screwed through the hollow handle part Vi of the locking-lever into the slot W so that its beveled end can bear on the tapering end of the corresponding pin V.

When the side and end walls of the moldboX are raised and the locking-levers W are swung down, the free ends of the screw W impinge on the tapered ends of the correspondin pins V, and as the ends of these screws s ide down on the tapered ends of the pins V they draw and hold the ends of the walls of the mold-box firmly and forcibly in contact, thus completely closing the moldbOX. A slot 0 is formed between the adjacent edges of the supporting-plates F and for the purpose of separating the several blocks molded at the same time a removable partition I) is placed transversely in the mold-box above each slot 0 in such a manner that the bottom edge of this partition rests in said slot, said partition being provided at each upper corner with a lug d, the bottom of which can rest on the top edge of the side wall of the I110ld-bOX and adjacent to this lug c for inserting a hook for lifting the partition out of the mold-box after the blocks have been molded, is provided. So that the supporting-plates F will always be in the proper position and the proper slot 0 formed between them, the tops of the hollow sides of the frame are provided with longitudinal slots m, through which bolts it pass, said bolts also passing through stops 1", from each of which a small lug 8 extends upward. As shown in Fig. 1, these lugs s can project up through the slots 0 between the supportingplates F, and thus form a gage for properly spacing the supporting-plates. The movable partitions b can thus be located at their bottom edges between the adjacent sides of two supporting-plates F, and their ends will be adjacent to the lugs s on the opposite sides of the machineframe.

To prevent the concrete in the box from being drawn out while removing the partitions, and thereby injuring or breaking the top surface of the block, an angle-bar g is placed across the top of the mold-box and the upper surface of the molded block adjacent to each side of that part of each partition I) projecting above the top of the mold-box and the top surface of the molded blocks. So as to form a recess m in each end of the block in addition to the central hole 11 ,half-cores h of corresponding shape are secured to the inner surface of each side wall, which hollow h alf-corcs h will be above the openings F in the supporting-plates F. When the block is to be made solid or when the central hole n and the recesses m are not desired, such half-cores h are omitted and supporting-plates F without the holes F are used. When the mold is closed and the parting partitions, cores, &c., are in place, the material is filled into the mold-box and carefully tamped and finished off at the surface. The sides of the mold-box are unlocked by lifting the locking-levers W, the dividing-partitions b are"removed,'and then the cranks II are turned so as to rotate the .rack-bars J downward slightly, and thereby the bed-pate 'D is moved downward slightly and the cores are slightly withdrawn or loosenedin the molded blocks. By the time that the lugs Q on the jaws P strike against the lugs Q on the plates B said plates R, the standards, and the endand side walls of the mold-box participate in the rotative movement of the shafts H, and said side and end walls are now swung from a vertical to a horizontal positionthat is, outward and downwardsufficiently to entirely expose the molded blocksand the mold-box is thus completely opened. At the same-time the bed plate D and the coresare moved downward vertically. By the downward or vertical movement of thebed-plate the cog-wheels L are turned and the bracket-arms L after the bed-plate has been moved down a short distance, strike. againstthe arms M upward and to the left, whereby the counterweight is swung upward and to the right, thus preventing the bed-plate and cores from descending too rapidly and jarring and jolting the machine or the blocks formed thereon. The supporting-plates, with the molded blocks thereon, are then lifted off the top of the frame of the machine, other supporting plates are placed upon thetop of the'machine, and the ends and side walls of the mold-box are swung up by turning the shafts H in the reverse direction. While so turning the shafts in the reverse direction the counterweight N is permitted to descend and in descending assists in swinging upward and inward the side and end walls of the mold-box. The partitions, b are then inserted and the end and side walls of the mold-box are locked.

As the gearing, &c., is all inclosed, it cannot become clogged by dripping concrete, (to: By means of the disks 0 and P the side and end walls can be adjusted to true parallelism with the shafts H, so that all the walls of the mold-box move from the molded boX uniformly'.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a machine for making concrete building-blocks, the combination with two hollow side frames having inclosing side walls on both sides, of a bed-plate mounted to move vertically between said side frames and guided on standards within said hollow side frames, substantially as set forth.

2. In a machine for making concrete buildin -blocks, the combination with vertical ho low side frames having inclosing side walls on both sides, of a vertically-movable bed -plate between said frames, a frame eX- tending downward from said bed-plate within said hollow frames, said bed-plate and the frames extendingdownward from the same and being guided within the hollow side frames, substantially as set forth.

3. In a machine for making concrete build-- ing-blocks, the combination with a vertical frame, of a vertically-movable bed-plate mounted in the same, cog-wheel gearing for raising and lowering the bed-plate, a counterweight and a rack and cog-wheel gearing connecting the vertically-movable bed-plate with the counterweight, substantially as set forth. Y

4. In a machine for making concrete building-blocks, the combination with a vertical frame, of'a' bed-plate mounted to move vertically in the same, a rack and cog-wheel gearing for raising and lowering the bedplate, a rack on the bed-plate engaging said cog-wheel, a shaft carrying a cog-wheel, a bracket-arm fixed on said shaft, and an arm mounted loosely on said shaft adjacent to and engageable with said bracket-arm, and a counterweight connected with said loose arm, substantially as set forth.

5. In a machine for making concrete building-blocks, the combination with a vertical frame, of a bed-plate mounted to move vertically in the same, a rack and cog-Wheel gearing for raising and lowering the bedplate, a rack on the bed-plate engaging'said cog-wheel, a shaft carrymg a cog-wheel, a rocking shaft, a counterweight suspended from said rocking shaft and a connectingrod connecting an arm ofthe rocking shaft with an arm of the shaft carrying the cogwheel, substantially as set forth.

6. In a machine-for making concrete building-blocks, the combination with a mold-box having movable end and side walls, of, a I

taper pin rojecting from one wall at each angle, a s otted angle-lever pivoted to the top of the other wall at saidangle and an adjusting-screw in said handle and longitudinallyadjustable therein, and the free endof the screw being adapted to bear against the taper pin, substantially as set forth.

7. In a machine for making concrete build-1 in -blocks, the combination with movable si e and end walls of the mold-box, of a taper pin projecting from the top of one of the walls at an angle of the boX, a lockinglever pivoted to the top of the other wall at said angle, which lockmg-lever has a 'longi tudinal slot, a screw screwed lengthwise through said locking-lever, one end of the screw projecting into said slot and adapted to bear on the taper pin, substantially as set forth.

8. In a machine for making concrete building-blocks, the combination with a vertical frame, of a vertically-movable bed-plate, rotative shafts mounted along the sides and ends of the frame, means for rotating them, a mold-box having swinging side and end walls carried and supported by said shafts and adapted to swing as said shafts are rotated, substantially as set forth.

9. In a machine for making concrete buildingblocks, the combination with a vertical frame, of a vertically-movable bed-plate, rotative shafts mounted along the sides and ends of the frame, plates carried by the shafts and adapted to swin as the shafts are rotated, standards held a justably on said plates, the side and end walls of the mold-box being secured to said standards, substantially as set forth.

10. In a machine for making concrete building-blocks, the combination with a vertical frame, of a vertically-movable bed-plate,

rotative shafts mounted along the sides and ends of the frame, collars longitudinally adjustable on the shafts, jaw-plates pivotally mounted on said collar, plates having jaws pivoted between said jaws of said plates, standards on said pivoted plates, the side and end walls of the mold-box being secured to said standards, substantially as set forth.

11. In a machine for making concrete building-blocks, the combination with a verticalframe, of a vertically-movable bed-plate, rotative shafts mounted along the sides and ends of the frame, collars on said shafts, jawplates pivoted to the collars, plates having a jaw pivoted between the jaws of each jawplate and mold-box end and side walls connected with said pivoted plates, substantially as set forth.

12. In a machine for making concrete I building-blocks, the combination with a vertical frame, of a vertically-movable bedplate, rotative shafts mounted along the sides and ends of the frame, collars on said shafts, a late I pivoted on each collar, jaws P on eac plate P, and having end lugs Q, the top of each jaw P being curved conveXly, a plate R having a jaw pivoted between the jaws P and having stop-lugs Q, a standard on the plate R, a mold-box wall attached to said standard, substantially as set forth.

13. In a machine for making concrete building-blocks, the combination with a vertical frame, of a vertically-movable bedplate, rotative shafts mounted along the sides and ends of the frame, collars on said. shafts, a plate having segmental slots pivoted to each collar, means for locking this plate in place on the collar, jaws on said pivoted plate, side and end wall supporting-plates having jaws, which jaws are pivoted between the jaws on the pivoted plate on the collar, substantially as set forth.

14. In a machine for making concrete building-blocks, the combination with a vertical frame, of a bed-plate vertically movable in said frame, shafts mounted along the side and ends of the frame, side walls and end walls forming a mold-box, which side and end walls are supported by the shafts, and means for adjusting the said side and end walls in a direction at right angles to their respective shafts, substantially as set forth.

15. In a machine for making concrete building-blocks, the combination with a vertical frame, of a bed-plate vertically movable in said frame, shafts mounted along the side and ends of the frame, side and end walls forming a mold-box, which side and end walls are supported by the shafts, plates pivoted on said shafts and adjustable around their pivots on said shafts and means for adjusting the end and side walls of the moldbox on said plates in a direction at right an gles to the respective end and side walls of the mold-box, substantially as set forth.

16. In a machine for making concrete building-blocks, the combination with a vertical frame, of a bed-plate vertically movable in said frame, rotative shafts along the ends and sides of the frame, gearing for raising and lowering the bed-plate from said shafts, plates pivoted on the shafts and adjustable on the shafts on their pivots, standards mounted on said pivoted plates and adjustable thereon in the direction at right angles to the ends and sides of the frame, and moldbox and side walls on said standards, sub stantially as set forth.

17. In a machine for making concrete building-blocks, the combination with a frame, of a mold-box having side and end walls mounted to swing outward and downward, rotative shafts carrying said side and end walls and pivotal connections between said shafts and said walls whereby there is a certain amount of lost motion between the shafts and said walls, substantially as set forth.

18. In a machine for making concrete building-blocks, the combination with a frame, of a mold-box having side and end walls mounted to swing outward and downward, rotative shafts supporting said side and end walls, pivotal connections between said walls and the said rotative shafts, and lugs on the two parts forming said pivotal connection, which lugs are normally out of contact and only come in contact after one of the pivotal parts has moved a certain distance, substantially as set forth.

19. In a machine for making concrete building-blocks, the combination with a frame and a mold-box on the top of the same, of supporting-p1ates resting on the top of the frame and within the mold-box, stops on the tops of the sides of the frame and lugs projecting pward from said stops, substantially as set forth.

20. In a machine for making concrete building-blocks, the combination with a frame and a mold box on the top of the same,

of supporting-plates ada ted to rest on the top of the frame and wit in said mold-box, stops resting on the tops of the sides of the frame and rovided with u wardly-extending lugs bot passing through said stops, two

longitudinal slots formed in the tops of the said members of the machine-frame, substantially as set forth.

In testimony whereof I have hereunto signed my name to this specification in the presence of two subscribing witnesses.

1 JULIUS JAEGER.

Witnesses:

H. G. BELL, JOHN W. BELL. 

